Ukuguqula imigwaqo: Amandla we-polymer asphalt asphalt ukuthola izindlela ezizinzile

Isifinyezo:Thola umhlaba weI-Polymer Modified Asphalt(PMA), ukuthuthuka okubalulekile ngaphezulu kwendabukookokuklasa. Le ndatshana idonsela kulokhoasphalt eguquliwe, kunganiukuguqulwa kwe-asphaltkubalulekile engqalasizinda yesimanje, izinhlobo zeipholisaama-modifiers asetshenzisiwe (afana ne-InnovativeElvaloy ™ Ret), nokuthi kuholela kanjani ekusebenzeni isikhathi eside,okusheshayo, futhi kungabizi kakhuluimidanso. Uma ubamba iqhaza ezintweni zokwakha zokwakhiwa komgwaqo, ukubhema kwe-aluminium, noma ukukhiqizwa kwensimbi, ukuqondaI-pgaukhiye wokuthola ukusebenza okungcono nokuphila isikhathi eside, kungenzeka ngisho nokufakasebenzisa futhiimifudlana efana-thambile esandleni. Funda ukuze ufunde ukukhetha okulungileUkusetshenziswa kwe-Asphaltkungenza umhlaba umehluko.

1. Yini ngempelaISAsphalt eguquliwe? Ukuqonda izisekelo

Emgogodleni wayo, i-asphalt iyindlela enamathela, emnyama, futhi ebonakalayo ebonakalayo noma ifomu eliqinile le-petroleum. Yi-glue, nomaI-Asphalt Binder, lokho kuhlanganisa ama-aggregates (njengetshe nesihlabathi) ndawonye ukwakha iI-Asphalt PavementSishayela nsuku zonke. Kodwa-ke, okujwayelekile noma "okucocekile"I-Asphalt Binderinemikhawulo. Ingaba brittle futhiukuqhekekaphakathi kwa-Ukushisa okubandayoizimo noma zithambile futhi zithambekele ekusakazweni (Ukumelana nokuguqulwaIzinkinga) atamazinga okushisa aphezulu. Yilaphoukuguqulwa kancaneIngena.

Asphalt eguquliweempeleni kujwayelekileisisekelo asphaltlokho kuye kwathuthukiswa ngokungeza okuthileama-polymersnoma okunyeizinto ezahlukahlukene(ukuguqulwa). Cabanga ngakho njengokungeza izithako ezikhethekile kwiresiphi ukuthuthukisa ukuthungwa kwayo, amandla, noma ukuthi iziphatha kanjani ngaphansi kwezimo ezihlukile. Umgomo weukuguqulwa kwe-asphaltukuthuthukisa i-Izakhiwo Ezibonakalayowe-binder, okwenza ukuthi kube nokuqina ngokwengeziwe futhi kulungele ukubhekana nezingcindezi zesimanjeumthwalo wethrafikhinezimo zezulu ezahlukahlukene. Le khasiI-Binder iguquliweUkufinyelela okuqondileukusebenza okufiselekayoIzici LokhoKungafanelekiI-Asphalt ayikwazi ukuletha ngokungaguquguquki.

Inqubo ifaka ukuhlanganisa ngokucophelela okukhethiweukuvumelanisaku-hotI-Asphalt BinderUkwakha okuzinzile, okunobunzimaingxubevange. Ukusebenza kweukuguqulwa kancanekuya ngokwanele kuhlobo nenani leipholisaisetshenzisiwe, izakhiwo zeisisekelo asphalt, kanye nokuhambisana phakathi kwe-binder kanyeokufakiwe. Lokhu kuthuthukiswa kwakha i-ejenti ephakeme ebabayoUkuxutshwa kwe-Asphalt, okuholela ekuqineni, ngaphezuluKuhlala isikhathi eside indlela yokuhamba ngezinyawo eseduze nomgwaqo.

2. Kungani uthuthukile? Ukwembulela izinzuzo zokusebenza kwe-polymer asphalt asphalt

Ngakho-ke, kungani udlula enkingeni futhi izindleko ezingaba khona zokusebenzisaasphalt eguquliwe? Impendulo ilele ekusebenzeni okuthuthuke kakhulu futhi inwetshiweUkuphila kwempilo. Qhathanisa nomhlanganoasphalt,I-Polymer Modified Asphaltinikeza uhla lwezinzuzo eziphoqayo ezihumusha zibe inani elingcono ngaphezulu kweImpilo Yenkonzoyeubabalo. Maka uMark Thompson, njengama-Photo Recipers amaningi, ubheka ikhwalithi ethethelela izindleko, futhiI-pgakuvame ukuletha lokho ngqo.

Nazi ezinye izinzuzo ezibalulekile:

• Ukumelana okwandayo kwe-strusting:E-amazinga okushisa aphezulu, i-asphalt ejwayelekile ingathambisa, okuholela ekulimaleni okungapheli noma ama-ruts ngaphansi kwesisindoumthwalo wethrafikhi. Ukuguqulwa kwe-polymer, ikakhulukazi ngama-elastomers afanaI-SBSnoma ama-polymers asebenzayo afanaElvaloy ™ Ret, kwandisa ukuqina kwe-binder kanye nokuqina kwamazinga okushisa aphezulu, ukusizaindlela yokuhamba ngezinyawo eseduze nomgwaqo melana na-deformation.
• Ukumelana okuthuthukile kokuqhekeka kokukhathala:Ukulayisha okuphindaphindiwe kwethrafikhi kungadala ukukhathalaukuphulaphakathi kwa-I-Asphalt Pavement, ikakhulukazi njengoba kunguNgama.Amabhayisikili aguquliweNgcono ukuguquguquka kwe-asphalt kanye nekhono lokuthola kabusha ekucindezelekeni, kubambezele kakhulu ukuqala kokukhathalaukuphula.
• Ukumelana okuthuthukayo kokuqhekeka okushisayo:Ezimweni ezibandayo zezulu, izinkontileka ze-asphalt. Uma le ngcindezi idlula amandla ashubile e-binder,Ukuqhekeka okushisayokwenzeka.Ukuguqulwaingathuthukisa i-okushisa okuphansiUkuvumelana nezimo kweI-Asphalt Binder, okwenza kube ngaphansi kwesithasiselo kulolu hloboIsihluthulelo Sesigameko.
• Kunciphise ukuthambekela komswakama:Amanzi angenza buthaka isibopho phakathi kweI-Asphalt Binderkanye-qonde eceleni, okuholela ekuphukeni (shupha) nokungazelelweindlela yokuhamba ngezinyawo eseduze nomgwaqoukwehluleka. -Nyeasphary asphams aguqulwebonisa kangconoukunamathelaizakhiwo futhi azivunyelwe kangakoubumanzi, Ukuthuthuka okupheleleukuqina.
• Impilo Yesevisi Yesigaba Esinwetshiwe:Ngokunciphisa usizi olujwayelekile njenge-rutting futhiukuphula, I-Polymer Modified Asphaltinganwebeka kakhulu ukusebenzaImpilo Yenkonzoof aindlela yokuhamba ngezinyawo eseduze nomgwaqo, okuholela empilweni ephansi-ukuyingilizaizindleko kanye nesidingo esincishisiwe njaloizindleko zokulungisa.

Lokhu kuthuthuka kushoImigwaqo eyenziwene-I-pgaIyakwazi ukuphatha izimo ezinzima futhi ihlale isikhathi eside, inikezela ukonga isikhathi esiningi yize kungabikho izindleko eziphakeme kakhulu ezibonakalayo. Njengoba umuntu ethola izinto zokwakha, eqinisekisa ukufisa isikhathi eside futhi anciphise amakhanda wesikhathi esizayo amaklayenti akho (njengezinkampani zokwakha umgwaqo) yi-Major Plus.

3. Yiziphi izinhlobo ezijwayelekile ze-polymer modifiers ezisetshenziswe ku-asphalt?

Umhlaba weukuguqulwa kwe-asphaltIsebenzisa izinhlobo ezahlukahlukene zeama-polymers, ngakunye okudlulisela izici ezihlukile kokugcinaI-Asphalt Binder. Ukukhethwa kweukuvumelanisakuya ngezithuthukisi zokusebenza ezithile ezidingekayo, izimo zesimo sezulu,umthwalo wethrafikhi, kanye nokucatshangelwa kwezindleko. Njengefekthri efana neyethu, sisebenza ngokucaciswa okuhlukahlukene ukuze sihlangabezane nezidingo ezahlukahlukene zomhlaba jikelele, kusuka e-USA kuya eYurophu nase-Australia.

Ezinye ezivame kakhuluipholisaukuguqulwaKusetshenzisiwe kufaka phakathi:

• Styrere-buthadieene-styrene (sbs):Lokhu mhlawumbe kusetshenziswa kabanziI-Polymer modifier. I-SBSi-thermoplastic elastomer, okusho ukuthi iphatha njengenjoloba emazingeni okushisa okuthola usizo kodwa ingacutshungulwa njenge-a-thambile esandleniemazingeni okushisa aphakeme. Kwakha inethiwekhi ngaphakathi kweI-Asphalt Binder, ngcono kakhulu ukuthuthuka, ukuvumelana nezimo (ikakhulukazi atlokushisa eliphansi), kanye nokumelana nakho konke ukukhathala nokukhathalaukuphula. I-SBSingaba ulayini nomaemthabeKuyoamangqamuzanaisakhiwo.
• I-Ethylene vinyl acetate (EVA): U-Evai-thermoplasticipholisa(i-plastomer). Ngokuyinhloko kwandisa ukuqina futhiukuhlakaniphayeI-Asphalt Binder, uthuthukisa ukumelana kwayo ukuze ubeke phansiokushisa okuphezuluizimo. Ngenkathi ithuthukisa ukusebenza okushisa okuphezulu, umphumela wayo ku-okushisa okuphansiUkuvumelana nezimo kungenzeka kukhulunywe kancaneqhathanisa nomhlanganoama-elastomers afanaI-SBS. Le khasiI-Vinyl AcetateOkuqukethwe kuthonya izakhiwo zalo.
• I-Elastomeric Terpolyymers (E.G., Elvaloy ™ Ret):Lokhu kuthuthukileukuguqulwayakhelwe ukuphendula ngamakhemikhali ngeI-Asphalt Binder. Elvaloy ™ Ret, kwakhiwa nguDow Inc., Isibonelo esiphambili. Lokhu kusabela kwamakhemikhali kwakha unomphela, uzinzeipholisaInethiwekhi ngaphakathi kwe-asphalt, enikeza ukuqina okuhle, ukuqina okuphezulu (ukuqina okushisayo),Ukushisa okubandayoUkusebenza, nokuqina kokugcina. SizoxoxaElvaloy ™ Retngemininingwane engaphezulu.
• Ezinye izindlela zokushintsha:
  • I-Crub Rubber:Kuthathwe kumathayi e-scrap,Irabha le-Crumbisetshenziselwa ukuthuthukisa ukuqina nokumelana nokuvuselelwa kabusha. Ukusetshenziswa kwayo kubuye kukhuthazesebenzisa kabusha.
  • Polyethylene (pe):Izinhlobo ezahlukahlukene ze-PE zingasetshenziswa, zivame ukwandisa ukuqina. Kwesinye isikhathi,I-Plastics esetshenzisiwezifakiwe.
  • I-polyphosphoric acid (PPA):Ngenkathi kungenjaloipholisa, Kwesinye isikhathi i-PPA isetshenziswa, imvamisa ngokubambisana nama-polymers, ukwandisa ukuqina okuphezulu (Isithombeibanga) le-binder.

Ukuqonda lezi zinhlobo ezahlukahlukene zeukuguqulwa kancaneIsiza ekucaciseni umkhiqizo ofanele isicelo esithile, noma ngabe kungumgwaqo omkhulu oshushumbisayo eNyakatho Melika noma umgwaqo wesifunda eYurophu. SisinyeUhlobo lokuguqulwainikeza ibhalansi eyingqayizivele yezakhiwo.

4. I-polymer iguqulwe kanjani i-asphalt ithuthukisa ngokukhethekile ukusebenza kwe-pasement?

Ake singene sijuleKanjaniokufanelezelaama-polymersihumusha emigwaqweni engcono. Umlingo wenzeka ezingeni le-micro-level, eguqulaIzakhiwo Ezibonakalayokanye nokuziphatha kwe-Rhewoological (kugeleza kanjani kanye nodoti) kweI-Asphalt Binder. Le mbambiso ethuthukisiwe bese idala amandla amakhuluIngxube ye-Asphaltlapho kuhlanganiswe ne-qonde eceleni.

Cabanga ngezitha eziphambili zeI-Asphalt Pavement: Amaloli asindayo, amazinga okushisa aphezulu, amanzi nesikhathi.I-Polymer Modified AsphaltUkubhekana nalezi zikhanda:

• Ukulwa Kwe-Deformation (Rutting):E-amazinga okushisa aphezulu, asphalt ejwayelekile ithambisa. Le khasiipholisaInethiwekhi ngaphakathiI-pgaIzenzo ezinjenge-skeleton eziqinisa, ezandisa ukuqina kwe-binder kanye nokuvuselelwa okuningana. Lapho kudlula ithayi leloli,indlela yokuhamba ngezinyawo eseduze nomgwaqoanciphise kancane kepha abuya emuva kakhulu, ukunciphisa kakhulu ukungaboni ngaso linye okungaziwa ngokuthi yi-rutting (cele). Lokhu kubalulekile emigwaqweni ephakemeumthwalo wethrafikhiamavolumu noma izimoto ezisindayo ezihamba kancane.
• Ukumelana nokuqhekeka ukukhathala:Cabanga ukugoba i-papercel emuva emuva naphambili - ekugcineni, kuyaphuka.I-Asphalt Pavementisipiliyoni sokucindezela okufanayoimijikelezongaphansi kwethrafikhi.Ama-polymersNgcono ukuguquguquka kwe-binder kanye nekhono lokwelula ngaphandle kokuphula, empeleni kwandise impilo yalo yokukhathala. Lokhu kushoindlela yokuhamba ngezinyawo eseduze nomgwaqoingakhuthazelela ukulayisha okuningi okuningiimijikelezongaphambiliukukhathala ukuqhekekaKuqala ukuvela, ukunweba impilo yayo ewusizo.
• Ukuvimbela ukuqhekeka okushisayo:Lapho amazinga okushisa eshaya, izinkontileka ze-asphalt futhi ziba brittle. Uma ukucindezelwa kwe-Contraction kuphezulu kakhulu, kubangelaokushisa okuphansinomaUkuqhekeka okushisayo. Ukuguqulwa kwe-polymer, ikakhulukazi ngama-elastomers afanaI-SBSnoma ama-polymers asebenzayo afanaElvaloy ™ Ret, kuthuthukisa amandla we-binder ukuze uhlale uguquguquke atUkushisa okubandayoukweqisa, ukunciphisa ubungozi balokhu kulimazaimifakatha. Lokhu kubalulekile ezifundeni ezibhekene nobusika obunzima.
• Ukunciphisa ukulimala komswakama (ukudonsa): Ama-polymersingathuthukisa i-ukunamathelaphakathi kweI-Asphalt Binderkanye-qonde eceleniindawo. Isibopho esinamandla sisho ukuthi amanzi mancane amathuba okungena angene futhi anciphise isikhombimsebenzisi, inqubo ebizwa ngokuthi yihlupha. Lokhu kuthuthukisiweubumanziUkumelana kunomthelela omkhulu kukho konkeukuqinanokuphila isikhathi eside kweI-Asphalt Pavement. -Ngconoukunamathelaugcinaingxubevangengenhloso.

Empeleni, theukusebenza kwe-Modifiedi-asphalt iphakeme ngobaipholisaNgokuvamile inethiwekhi iyashintsha ishintsha indlela i-binder ephendula ngayo ezintweni zengcindezi kanye nezici zezemvelo, okuholela kumuntu onamandla, onamandla amakhuluindlela yokuhamba ngezinyawo eseduze nomgwaqoisakhiwo. Lokhu kubhekana ngqo nokukhathazeka nge-peavective ende futhiizindleko zokulungisa.

I-5

Impela. Ngenkathi ukugxila kokuqala kweukuguqulwa kwe-asphaltbekungukukhulisa ukuthuthukiswa kokusebenza, izinzuzo ezivelayo zivumelana ngokuqinile nesidingo esikhulayo sokuningiokusheshayoizixazululo zengqalasizinda. UMark Thompson, ubhekene nezimboni ezahlukahlukene, uyakuqonda ukubaluleka okwandayo kokucatshangelwa kwemvelo kanye nenani lesikhathi eside.

Nakhu kanjaniasphalt eguquliweInomthelela ekusimeni:

1. Impilo ehamba phambili ende:Lokhu mhlawumbe umnikelo obaluleke kakhulu.Imigwaqo eyenziwene-I-pgaMane nje uqhubeke isikhathi eside. Ngokunweba leImpilo Yenkonzoiwa-indlela yokuhamba ngezinyawo eseduze nomgwaqo, Sinciphisa imvamisa yokuvuselela okuphezulu nokwakha kabusha. Lokhu kusho ukuthi udla izinto ezimbalwa eziluhlaza (okuhlanganisiwe, i-binder), usebenzisa amandla amancane okukhiqiza nokwakha, futhi kubangele ukuphazamiseka okumbalwa kwethrafikhi ngaphezulu kweumgwaqo wedolobhaimpiloukuyingiliza.
2. Ukulungiswa okuncishisiwe:Ukumelana okuthuthukayo ekucindezelekeni okufana nokwehla,ukuphula, futhi ukugqabhula kusho isidingo esincane sokwenza kahleizindleko zokulungisanjengokubopha uphawu nokubopha. Ukulondolozwa okuncishisiwe kuhumushela ekunciphiseni ukwehlisa ukusetshenziswa kwezinto ezibonakalayo, ukusetshenziswa kaphethiloli okuncane kwabasebenzi besondlo, kanye nezingozi ezimbalwa zokuphepha ezihambisana nezindawo zomsebenzi.
3. Okungaba khona kwezindawo ezincanyana:Kwezinye izimo, izakhiwo eziphakeme zesakhiwo zeI-Polymer Modified Asphalt Mixtureskungavumela ukuncipha okuncaneindlela yokuhamba ngezinyawo eseduze nomgwaqoImiklamo ngenkathi isakutholaukusebenza okufiselekayona-Impilo Yenkonzo. Lokhu kunciphisa ngokuqondile ivolumu yezinto ezidingekayo.
4. Ukufakwa kwezinto ezisetshenziswayo:Ubuchwepheshe ngemuvaasphalt eguquliwekuya ngokuya kuhlolisiswa ukwenza lula ukusetshenziswa kweI-Plastics esetshenzisiwe (sebenzisa futhi) InUkuxutshwa kwe-Asphalt. Ngenkathi izinselelo zihlala zinokuvumelana nokusebenza isikhathi eside, ukuguqulwa kungasiza ekuhlaseleniI-Plastics esetshenzisiweNgaphakathi kwe-matrix ye-asphalt, enikeza ukuphuma okungaba khona kokungcola kwepulasitiki. Ubuchwepheshe obunjengeElvaloy ™ Retbayaphenywa ngekhono labo lokusebenza ngempumelelo nezinye izinto, ngokunokwenzeka kufaka phakathi izinto eziphindaphindwayo.

Ngenkathiinqubo yokucwilisaUkuze asphalt kanye nokukhiqizwa kweama-polymersngokwabo banezinyathelo zemvelo zemvelo, isikhathi sokuphila esinwetshiwe kanye nezidingo zokulungiswa zokulungisa ezinikezwa yiI-pgaDala impikiswano eqinile yendima yayo kokuningiokusheshayo I-Asphaltimikhuba. Ukugxila kuphuma kusuka kumthelela wokuqala empilweni yonkeukuyingilizaukusebenza kanye nokusetshenziswa kwemithombo. Lo mbono wesikhathi eside ubalulekile ekuhlelweni kwengqalasizinda kanye nokutshala imali.

I-6. Spotlight ekususeni okusha: Yini i-Elvaloy ™ Ret futhi kungani ibalulekile?

Phakathi kwabahlukahlukeneipholisaukuguqulwa okutholakalayo,Elvaloy ™ Ret(I-Elastomeric terpolymer) kusukaDow Inc.imelela intuthuko ebalulekile yezobuchwepheshe ku-ukuguqulwa kwe-asphalt. Akuyona nje into elulaxubanisa; yakhelwephendulangamakhemikhali ngeI-Asphalt Binder. Lokhu kusebenza kuyasibeka ngaphandle futhi kunikeza izinzuzo ezihlukile ezisebenza ikakhulukazi ekufezekiseni ukusebenza okuphezulu,Kuhlala isikhathi esideimidwebo.

Yini eyenzaElvaloy ™ RetKukhethekile?

• Isibopho samakhemikhali:-Ngafani na-I-SBS, okwakha inethiwekhi ebonakalayo,Elvaloy ™ Retiqukethe amaqembu asebenzayo ahlanganisa amakhemikhali ngama-molecule athile kuI-Asphalt Binder. Lokhu kudala okuhlala njalo, okuzinzile, okunezici ezintathuipholisainethiwekhi kuyo yonke asphalt.
• Ukuthuthukiswa kokuqina nokuqina:UmphumelaI-Polymer Modified Asphaltkukhombisa ukululama okuhle kakhulu kokunwebeka kulo lonke uhla lokushisa olubanzi. Lokhu kusho ukumelana okuphezulu ekusakazeni atamazinga okushisa aphezulukanye nokuguquguquka okuthuthukile ukuvikelaukuphulae-amazinga okushisa aphansi.
• Ukuqina kwesitoreji:Inselelo eyodwa nabanyeasphalts eguquliwe, ikakhulukaziI-SBS-Iminyene, ingaba ukuhlukaniswa kwesigaba ngesikhathi sokugcina esishisayo. Ukuhlanganiswa kwamakhemikhali kutholweElvaloy ™ Retkuholela ekuzinzileni okuqinileingxubevangelokho kumelana nokuhlukaniswa, ukwenza lula ukungena kwezinto nokuphathaI-AsphaltOsonkontileka. Lokhu kubhekana ngqo namaphoyinti obuhlungu angahle ahlobene nokuvumelana kwezinto ezibonakalayo.
• Ukulungiswa kokucutshungulwa: Elvaloy ™ Retihlinzekwa ngefomu le-pellet eligeleza mahhala, okwenza kube lula ukuphatha futhi lifake kuI-Asphalt Binder.
• Okuhlukahlukene: Elvaloy ™ Retifakazele ukuthi isebenza ngempumelelo ezinhlelweni ezahlukahlukene, kusukela emgwaqweni omkhulu ofunwayoimidansoukufuya i-airfield. Kuyasiza ukufeza okuphezuluIsithombe(Ibanga Lokusebenza) Linders elidingekayo ngokucaciswa okufanaSuperpave.

Ukuthuthukiswa kwezinguquko ezisebenzayoElvaloy ™ Retikhombisa okusha okuqhubekayo enkundleni. Kwabahlinzeki abanjengathi, ukunikela ngemikhiqizo eguqulwe ngokuthuthukileama-polymersthandaElvaloy ™ Read elastomericI-Terpolymers isivumela ukuthi sihlangabezane nezidingo zokusebenza ezifunwa kakhulu zamaphrojekthi kuU.S., I-Europe, nangale kwalokho. Imelela i-premiumukuguqulwa kancaneInketho yokuthola i-top-tierindlela yokuhamba ngezinyawo eseduze nomgwaqoukusebenza futhiukuqina. UkusebenzisaElvaloy ™ Retkuvame ukuholela ekuthuthukisweni okukhulu ekumelaneni okujwayelekileIsihluthulelo Sesigamekoizindlela. I-chemistry eyingqayizivele yeElvaloy ™ Retihlinzeka ngesixazululo esiqinile ngokuqhathaniswa nokuhlanganiswa okulula ngokomzimba. NiniElvaloy ™ Retaphendulela, kwakha inethiwekhi efakiwehydrocarbonizingxenye, ukuthuthukisa ukuqina okuphelele.

7

UMark Thompson ukukhathazeka ngokuhlolwa kwekhwalithi kanye nezitifiketi zisebenza kakhulu, ikakhulukazi lapho izinto zokwakha zisebenza emhlabeni jikelele. Ukuqinisekisa ikhwalithi nokuvumelana kweI-Polymer Modified Asphaltkubaluleke kakhulu ekufezeni iukusebenza okufiselekayoOkokugcinaindlela yokuhamba ngezinyawo eseduze nomgwaqo. Lokhu kufaka phakathi ukuhlolwa okuqinile nokubambelela kumazinga kulo lonke umkhiqizo kanye nenqubo yokuhlinzekwa. Njengefekthri enemigqa eminingi yokukhiqiza kanye nesipiliyoni sokuthumela emhlabeni jikelele, siyaqonda ukuthi lezi zidingo zisondelene.

Izici ezibalulekile zokuqinisekiswa kwekhwalithi zifaka:

• I-Binter ukucaciswa nokuhlolwa: Ama-asphalt asphalt ama-asphaltzivame ukufakwa kusetshenziswa amasistimu afana neSuperpaveUkusebenza kokusebenza (Isithombe) Uhlelo. Lolu hlelo lubonisa i-binter ngokususelwa ekusebenzeni kwayo okulindelwe maqondana nesimo sezulu (e.g.IsithombeI-76-22 ikhombisa i-binter efanelekile yokushisa okuphezulu kwe-pavement ka-76 ° C kanye nobuncane be-22 ° C). Ukuhlolwa okujwayelekile Kikala izakhiwo ezifana:
  • I-Viscosity:Ukuthi i-Binder igeleza kanjani emazingeni okushisa aphezulu (afanele ukuxubana nokuhlangana).
  • Dynamic shear rheomemeometer (DSR):Izinyathelo zokuqina nokuqina kokuphakathi nendawo futhiamazinga okushisa aphezulu(kuhlobana nokugcotshwa nokukhathalaukuphula).
  • Ukugoba uBeam Rheometer (BBR):Kukala ukuqina kuamazinga okushisa aphansi(kuhlobanaUkuqhekeka okushisayo).
  • I-Direct Tension Tenser (DTT):Izindlelaokushisa okuphansii-conductility (futhi iyalandisaUkuqhekeka okushisayo).
  • Ukubuyiselwa Kwe-Elastic:Kukala amandla we-binder to "shaya emuva" ngemuva kokunwetshwa.
  • Iphuzu lokuthambisa:Kukhombisa izinga lokushisa lapho i-asphalt ifinyelela khona izinga elithile lokuthamba.
  • Ukungena:Isilinganiso sendabuko sobulukhuni / ukuvumelana ngamazinga ajwayelekile.
• Ukuvumelana okuguquguqukayo nokuhlakazeka:Kubalulekile ukuthiI-Polymer modifieriyahambisana neisisekelo asphaltfuthi ihlakazeke kahle kuyo yonke i-binder. -Ntulayoukuhlakazekakungaholela kumkhiqizo ongahambisani nokusebenza kwe-subpar. Amasu afana ne-fluorescence-yi-MicroScopyingasetshenziswa ukubheka ukubonakalaipholisaIsakhiwo senethiwekhi ngaphakathi kweasphalt eguquliwe. -Ngashintshiukuhlakazekaukhiye.
• Ukulawulwa Kwenqubo Yokukhiqiza:Abakhiqizi kumele balondoloze ukulawulwa okuqinile kwamazinga okushisa ahlanganayo, izikhathi zokuxuba, futhiukuvumelanisaAmanani wokungezelela ukuze aqinisekise i-batch yomkhiqizo engaguquki ngemuva kwe-batch.
• Izitifiketi:Abahlinzeki abadumile kufanele bahlinzeke ngemibhalo eqinisekisa ukuthi umkhiqizo wabo uhlangabezana nemininingwane edingekayo (e.g., AASHM, ASTM, noma izidingo ezithile zephrojekthi). Ukuhambisana namazinga we-ISO wokuphathwa kwekhwalithi nakho inkomba enhle. Ukubhekana nokukhathazeka kukaMarku mayelana nenkohliso yesitifiketi kudinga ukukhuthala nokusebenza nabathengisi abasunguliwe, abacacile.
• Ukwakheka kwengxube nokuhlola:Ngaphesheya kwe-binder, owokugcinaIngxube ye-Asphalt(I-Binder +-qonde eceleni) kumele futhi yakhelwe kahle futhi ihlolwe (e.g., isebenzisa iMarshall nomaSuperpaveIzindlela zokusebenzisana kwe-gyrator) Ukuqinisekisa ukuthi ihlangabezana nenqubo ye-volumetric kanye nokuphikisana nokumelana nokuvuselelwa kanyeumswakama wokusungula. Izigaba zokuhlolazivame ukusetshenziselwa ukuqinisekisa ukusebenza kwezimo zangempela zomhlaba.

Ukulawulwa kwekhwalithi kuyinqubo yezinyathelo eziningi, kubalulekile ekuqinisekiseni ukuthi izakhiwo ezithuthukisiwe ezithenjiswe yiI-Polymer Modified Asphaltempeleni zihanjiswa kuubabalo.

8. Ukuzulazula ngomgwaqo ophambili: Ngabe kukhona izinselelo ekusebenziseni aspharad asphamified?

LaphoI-Polymer Modified AsphaltInikeza izinzuzo ezibalulekile, kufanelekile ukuthola izinselelo ezingaba khona ezingabasebenzisi kanye nabakhiqizi abangahlangabezana nazo. Ukuqonda lokhu kuyasiza ekuhleleni nasekunciphiseni izindaba ezingaba khona.

• Izindleko eziphakeme zokuqala: Ama-polymer modifiersfuthi ukucubungula okwengeziwe okudingekayoI-pgakubiza kakhulu kunokujwayelekileI-Asphalt Binder. Lezi zindleko eziphambili zidinga ukukala ngokumelene nezinzuzo zesikhathi eside ze-ExtendedImpilo Yenkonzofuthi kuncishisiweizindleko zokulungisa. Impilo-ukuyingilizaUkuhlaziywa kwezindleko kuvame ukukhombisa ukucaciswa kwenani, kepha umthelela wesabelomali sokuqala uyisici.
• Ukuphatha nokugcina:-Nyeasphalts eguquliwe, ikakhulukazi lezo eziphezuluipholisaukugxila noma izinhlobo ezithile ezifanaI-SBS, kungadinga amazinga okuxuba aphezulu wokuxuba nokuhlangana ngokuqhathaniswaKungafanelekiasphalt. Ukuqina kwesitoreji nakho kungaba ukukhathazeka, kudinga ukubekezelela okwanele emathangini okugcina ukuvimbela ukuhlukaniswa kwesigaba (yize ama-modifiers afanaElvaloy ™ Retkakhulu ukunqoba lokhu).
• Izinkinga zokuhambisana:Akubona bonkeama-polymersziyahambisana nazo zonkeizisekelo ze-BASE. Amakhemikhali weisisekelo asphalt, ethonywe ngumthombo kawoyela ongahluziwe futhiinqubo yokucwilisa, kungathinta kanjani ukuthiipholisabahlakazeka futhi benze. Ukuhlola kuvame ukudingeka ukuqinisekisa ukuhambisana.
• Isidingo sobuchwepheshe:Ukukhiqizwa okufanele, ukuphathwa, nokusebenzisaI-pgadinga ukuqonda okuhle kwezinto ezibonakalayo. Osonkontileka kanye nabasebenzi bezobuchwepheshe badinga ukuqeqeshwa okufanele kanye nesipiliyoni sokuqinisekisaindlela yokuhamba ngezinyawo eseduze nomgwaqoyakhiwe kahle ukufezaukusebenza okufiselekayo. Le makheli ikhuluma ngenothi likaThompson mayelana nokuntula ubuchwepheshe bezobuchwepheshe - ukuncika kubahlinzeki abanolwazi kuba ukugxeka kakhulu.
• Izidingo zokulawulwa kwekhwalithi:Izinzuzo zokusebenza zincike kwikhwalithi engaguquki. Lokhu kubeka isidingo esiphakeme ezinhlelweni zokulawula ezisezingeni lomkhiqizi kanye nokuhlolwa kwekhwalithi yomsebenzisi. Noma yikuphi ukuphelelwa amandla, njengompofuukuvumelanisa ukuhlakazeka, ingahlehlisa ukusebenza.

Ngaphandle kwalezi zinselelo, irekhodi lethrekhi nezinzuzo ezifakazelwe zeI-Polymer Modified Asphaltkuholele ekutholeni kwayo okuphelele kwezicelo ezifunwayo. Ukuhlela ngokucophelela, ukukhethwa kokufaneleukuguqulwa(»Elvaloy ™ RetUkuze uzinzo), futhi ukusebenzisana nabahlinzeki abanolwazi kungaphatha ngempumelelo lezi zingqinamba ezingaba khona. Ukuxhumana okucacile, ukubikezela iphuzu lobuhlungu likaMarku, kubalulekile phakathi komphakeli kanye nekhasimende ukuqinisekisa izidingo nezinselelo ezingaba khona ziyaqondakala.

9. Ukwenza Ukukhetha Okufanele: Ngiyikhetha kanjani i-asphalt eguqulwa kahle yephrojekthi yami?

Ukukhetha okulungileasphalt eguquliweakuwona usayizi owodwa - zonke izinqumo. Kudinga ukucatshangelwa ngokucophelela kwezinto ezimbalwa eziqondene nephrojekthi. Okomuntu onjengoMark Thompson, onikeza izinto zokwenziwa kwezicelo ezahlukahlukene (ama-aluminium smelters adinga iphimbozo / i-coke, kepha amaklayenti akhe wokwakha adinga i-asphalt efanele), ukuqonda lezi zinqubo zokukhetha kubalulekile ekunikezeni inani.

Nakhu ukwephulwa kwezinto okufanele ucabangele:

1. Isimo sezulu:Yi-indlela yokuhamba ngezinyawo eseduze nomgwaqoItholakala endaweni enokushisa okwedlulele, okubandayo okubandayo, noma okushisa okukhulu? Lokhu kuyacebisa okudingekayoIsithombeibanga. Ukushisa okuphezulu kudinga ukumelana okuhle kwe-rut (okushisa okuphezuluukuqina), kanti isimo sezulu esibandayo sidinga okuhle kakhuluokushisa okuphansiUkuvumelana nezimo ukuvikelaUkuqhekeka okushisayo.
2. Umthwalo wethrafikhi:Ithrafikhi engakanani, futhi hlobo luni (izimoto ezisindayo, izimoto ezihamba kancane), kuzokwenzekaubabalophatha? -Phakemeumthwalo wethrafikhiamavolumu kanye nemithwalo esindayo edinga ama-beinders anokumelana okuphezulu ekusakazeni kanyeukukhathala ukuqhekeka.
3. Izidingo ezithile zokusebenza:Ingabe kukhona izinkinga ezithile ozidingayo ukulwa? Isibonelo, uma ukukhathalaukuphulaukukhathazeka okuyinhloko, i-elastomericukuvumelanisathandaI-SBSnomaElvaloy ™ Retkungakhethwa. Uma ukuqina okushisa okuphezulu kuyinjongo eyinhloko,U-EvanomaElvaloy ™ Retkungaba ukukhetha okufanele.
4. Isakhiwo se-Pavement:Ukwakheka kwe-jikeleleindlela yokuhamba ngezinyawo eseduze nomgwaqoIsistimu (ubukhulu besendlalelo, ikhwalithi yesisekelo) ithonya izingcindezi ungqimba lwe-asphalt zizohlangabezana nazo.
5. Ukutholakala kanye nesipiliyoni sendawo:Yizinhlobo ezithile zeasphalts eguquliweItholakala kalula esifundeni? Ingabe osonkontileka bendawo banolwazi olusebenza ngokukhethekileI-pgaizinhlobo? Kwesinye isikhathi ukucatshangelwa okungokoqobo kuthonya ukukhetha.
6. Ukuhlaziywa Kwezinzuzo Ezibizelelwe:Ngenkathi ukusebenza kubalulekile, izindleko zihlala ziyisici. Hlola izindleko zokuqala eziphikisana nokunwetshwa okulindelwe kuImpilo Yenkonzokanye nokwehliswa ngaphakathiizindleko zokulungisa. Ukutshalwa kwemali okuphezulu okuphezulu kweprimiyamuukuvumelanisathandaElvaloy ™ Retingahle ilungiswe ngokubabazekayoUkuphila kwempiloezimweni ezifunwayo. Le khasiAsphalt InstituteInikeza izinsiza ezingasiza ekuhlaziyweni kwezindleko zokuphila.
7. Ukucaciswa:Qinisekisa ukuthi kukhethiweasphalt eguquliweIhlangabezana nayo yonke imininingwane yephrojekthi kanye namazinga afanele (e.g., AASHTO, ASTM, Izidingo Zamachashazi). Ukuxhumana nezinsizakusebenza ezinjengeAsphalt Institutelunganikeza umhlahlandlela ngemikhuba emihle kakhulu.

Ekugcineni, ukukhethwa kubandakanya ukulinganisa izidingo zokusebenza, izimo zemvelo, izimfuno zethrafikhi, kanye nezinkinga zesabelomali. Ngokusebenzisana eduze nomphakeli onolwazi, njengeqembu lethu efektri, eliqonda izakhiwo ezihlukileasphalts eguquliwe (njengevila lokushisa eliphakathi asphaltnomaAsphalt lokushisa eliphakeme), kubalulekile ukwenza isinqumo esinolwazi. Singasiza izixazululo ze-Tailor ngokususelwa kwizidingo ezithile, sifaka isipiliyoni sethu ngokuhlukileipholisaizinhlobo namamaki.

10. Iliphi ikusasa liphethe ukuguqulwa kwe-asphalt kanye nokufuna imigwaqo engcono?

Insimu yeukuguqulwa kwe-asphaltiyavela njalo, iqhutshwa isidingo sokuhlala isikhathi eside, sibiza kakhulu, futhiokusheshayoimidwebo. Izitayela eziningana ezijabulisayo zibumba ikusasa:

• I-Advanced Polymer Chemistry:Ucwaningo luyaqhubeka nezinhlobo ezintsha zeama-polymersna-ukuguqulwa kancaneamasu. Lokhu kufaka phakathi ukuthuthukiswa okuqhubekayo kwama-polymers asebenzayo afanaElvaloy ™ Ret, ukuhlola izinhlelo ze-hybrid zihlanganisa okuhlukileukuguqulwa, kanye nokuklama ama-polymers ngokumelana kangcono nokuguga (Ultravioletukukhanya ne-oxidation) kanyeukuwohloka kwelanga.
• Ukusetshenziswa okwengeziwe kwezinto eziphindaphindekile:Ukusimama kungumshayeli omkhulu. Ucwaningo olubalulekile lugxile ekuthoseni ngempumelelo amaphesenti aphezulu weI-Plastics esetshenzisiwe, Irabha le-Crumb(kusuka kumathayi), ne-asphalt pavement (rap)Izingxube ze-asphalt eziguquliwengaphandle kokuyekethisa ukusebenza.Ukuguqulwadlala indima ebalulekile ekubumbeni lezi zinto zokwakha.
• Ama-Bio-Binders:Kunentshisekelo ekhulayo ekuthuthukiseni ama-asphalt ama-Binders athathwe ngokwengxenye noma ngokuphelele kwizinsizakusebenza ezivuselelekayo (amafutha e-bio-oyela, i-lignin kusuka ngokhuni, njll.) Njengezinye izindlela noma ezandisa asphalt-based asphaltukhokhevu. Ukuguqulwa kancaneAmasu angashintshwa ngalezi zinhlobo ezintsha zamabhayisekili.
• Nanotechnology:Abaphenyi bahlola ukusetshenziswa kwama-nanomatadium (njenge-nanoclay noma i-carbon nanotubes) njengethubaama-asphalt modifaersUkuthola ukuthuthuka okubalulekile kokusebenza ngisho namanani aphansi kakhulu wokungezwa.
• Ubuchwepheshe be-Asphalt-Mix Efudumele (WMA):Ngenkathi kungenjalo ngokuqinileukuguqulwa kancane, Ubuchwepheshe be-WMA buvumela i-asphaltukuxuba(kufaka phakathiasphalt eguquliwe) ukukhiqizwa futhi kubekwe emazingeni okushisa aphansi. Lokhu kunciphisa ukusetshenziswa kwamandla, ukuphuma kwama-emuncy, kanye nokuvezwa kwe-fume kwabasebenzi, ukuqondanisa neokusheshayoizinhloso. Imvamisa, izithasiselo ze-WMA zisetshenziswa ngokubambisana nazoAma-Polymer Modified Binders.
• Ukucaciswa okususelwa ekusebenzeni:Kukhona ukuguqukela okuqhubekayo ekucacisweni okuchaza i-Ukusebenza okudingekayo(e.g., ukumelana nokukhuphuka,ukuphula) kunokuba unikeze izindlela ezithile zokupheka. Lokhu kukhuthaza okusha futhi kuvumela abahlinzeki ukuthi basebenzise okusebenzayo kakhuluukuguqulwa kancaneamasu (njengokusebenzisaElvaloy ™ Ret) Ukuhlangabezana nalezo zinhloso zokusebenza.

Njengomkhiqizi enziwe kwikhwalithi kanye nokwenza izinto ezintsha, sibheka ngenkuthalo lezi zindlela. Umgomo uhlala ufana: ukuhlinzeka ngezinto ezifana nezethuAsphalt eguquliweLokho kuvumela ukwakhiwa kwemigwaqo egcina isikhathi eside, yenza kangcono ngaphansi kwengcindezi, idinga ukulungiswa okuncane, futhi inikele kokuningiokusheshayoInethiwekhi yengqalasizinda emhlabeni jikelele. Uhambo lweukuguqulwa kwe-asphaltkukude kakhulu, uthembisa izixazululo ezingcono kakhulu zeizindlelakusasa.

Ukubekezela okusemqoka ukukhumbula:

• I-Modified asphalt (PMA):Isigaxa esijwayelekile se-asphalt sithuthukisiwe ngeama-polymersnoma okunyeukuguqulwaukwenza ngcono ukusebenza.
• Izinzuzo ezinkulu:Ukwanda kokumelana nokugcotshwa, ukukhathalaukuphula, Ukuqhekeka okushisayo, futhiubumanziukulimala, okuholela ekutheniImpilo Yenkonzo Ye-Pavementkanye nempilo ephansi-ukuyingilizaizindleko.
• Ama-modifiers ajwayelekile: I-SBS(Elastomer),U-Eva(Plastomer), kanye nama-polymers athuthukile asebenzayo afanaElvaloy ™ Ret. Irabha le-Crumbna-I-Plastics esetshenzisiweziyasetshenziswa futhi.
• Ukuthuthukiswa kokusebenza: Ama-polymersDala inethiwekhi yokuqinisa ngaphakathi kwe-asphalt, uthuthukise ukuqina kwayo ku-amazinga okushisa aphezulunokuvumelana nezimo atamazinga okushisa aphansi.
• Ukusimama: I-pgakunomthelela ekusimeni ngokuhamba kwesikhathiUkuphila kwempilo, ukulungiswa okuncishisiwe, namandla okufakaI-Recycledizinto zokwakha.
• Ikhwalithi ibalulekile:Ukuhlolwa okuqinile (IsithombeI-Grading, DSR, BBR), Inqubo Yokulawula, Futhi IfaneleUkuhlakazeka kwe-Modifierkubalulekile ekuqinisekiseni ukusebenza okungaguquki.
• Izici zokukhetha:Ukukhetha kweI-pgakuya ngesimo sezulu,umthwalo wethrafikhi, Izidingo ezithile zomsebenzi, izindleko, kanye nezici zasendaweni. Ukusebenzisana nabahlinzeki abanolwazi kubalulekile.
• Izitayela Ezizayo:Gxila kuma-polymers athuthukile, ukukhuphuka kabusha kabusha, ama-Bio-Binders, Nanotechnology, kanye nokucaciswa okususelwa ekusebenzeni.

Ngokuqonda nokusebenzisaI-Polymer Modified Asphalt, ababambiqhaza njengoMark Thompson kanye nezimboni abazisebenzela bangakha kangcono, ukuqina ngokwengeziwe, nokuningiokusheshayoingqalasizinda yesikhathi esizayo.